Stylographic pen.



PATBNTBD PEB. 11,1908.

J. lULLRICH. STYLOGRAPHIC'PBN. unieuro! ruw 001.15.1901.

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UNITED sTATEs ETENT oEErCE.

JACOB ULLEICH, or HoBoKEN, NEW JERSEY.

STYLOGRAPHIC PEN.

To all whom it may concern:

Be it known that I, J ACoB ULLRICH, a citizen of the United States, residin ken, Hudson county, State of ew Jersey, have invented new and useful Improvements in Stylographic Pens, of which the following is a specification.

Thls invention relates to an improved stylographic pen and more particularly to an improved construction of the connecting means between the needle and the air tube of such pen. y

In the accompanying drawing: Figure 1 is a longitudinal section of my improved stylographic pen; Fig. 2 an enlarged longitudinal section through the lower end thereof, and Fig. 3 a cross section on line eme, Fig. 2.

lThe tubular barrel 10 `of the pen inclosing the ink reservoir 11 is threaded at its lower end as at 12 for engagement with the nozzle 13. Within barrel 10 is inclosed an air tube 14 communicating with the atmosphere through vent 15 of barrel 10. The outer diameter of tube 14 is less than the inner diameter of nozzle 13, so that a clearance is formed around the tube, `through which the ink may flow from reservoir 1 1 into nozzle 13. The air from tube 14 enters the ink reservoir 10 or nozzle 13 throughs lateral outlet 16 of the tube.

The bore of air tube 14 is enlarged at its bottom to form an integral housing inclosing a chamber 17 for the reception of a head 18 formed on the heel of needle 19.

Specification of Letters Patent.

Application filed October 15. 1907. Serial No. 397.581.

at I'Iobo- Patented Feb. 1 1, 1908.

Within the lower end of chamber 17 is iitte'd a perforated 'bushing 2O which encompasses needle 19 and serves to confine head 18 within chamber 17. A spiral spring 21 interposed between head 18 and a shoulder 22 ormed on u per end of chamber 17 within housing ten s to push needle 19 outward through nozzle 13.

In connecting the parts, spring 21 and headed end of needle 19 are introduced from below into chamber 17, and then bushing 20 is slipped over the needle and permanently fitted into the lower end of tube 14. In this way the construction of the parts is simplilied, and they may be readily assembled with a minimum expenditure of time and labor.

I claim.:

A stylographic pen provided with an ink barrel, an inclosed air tube having an exanded lower bore to forman integral housing and a shoulder at the upper end of said housing, a nozzle communicating with the ink barrel, a perforated bushing in the bottom of the housing, a needle passing through the bushing and havin a head within the hous ing, and a sprin within the housing that engages said shou der and head, substantially as specified.

Signed by me at New York city, (Manhattan,) N. Y., this 14th dayof October,

JACOB ULLRIOH. Witnesses:

FRANK v. BRIEsEiv,

W. R. SCHULZ. 

